Skip to Main Content Skip to Site Navigation Skip to Section Navigation

Fish and Game Home

Alaska Department of Fish and Game

Hide Section Navigation

Section Navigation

Fisheries, Subsistence, and Habitat
Publications Searchable Database

Division:	Sport Fish
Title:	Juneau area rainbow trout pre-stocking assessment, 2017-2018.
Author:	Schroeder, K., K. Smikrud, and A. Reimer.
Year:	2017
Report ID:	Alaska Department of Fish and Game, Regional Operational Plan No. ROP.SF.1J.2017.01, Anchorage.
Abstract:	Beginning in 2018, the Alaska Department of Fish and Game, Division of Sport Fish (ADF&G-SF) is scheduled to begin stocking 4 lakes (Crystal, Glacier, Moraine, and Twin lakes) along the Juneau roadside freshwater fishery with all-female triploid rainbow trout (Oncorhynchus mykiss). Prior to these releases, lake assessments will be conducted to evaluate existing biological, chemical, and physical conditions at each lake scheduled to be stocked. Pre-release surveys are designed to identify species occupancy in each lake. Fish will be captured using a combination of traps (hoop and minnow), a tangle net, and hook-and-line (i.e., sport fishing) gear. Water quality profiles will be performed in each lake to measure water clarity, temperature, dissolved oxygen, pH, specific conductivity, salinity, and total dissolved solids. Bathymetry data will be collected for each lake scheduled to be stocked and the hydrography associated with Crystal, Glacier, and Moraine lakes will be mapped. After bathymetric data has been collected and spatially enabled, bathymetric maps will be created and other lake characteristics (i.e., surface area, maximum length and width, mean depth, maximum depth, shoreline length, shoreline development, and volume) will be calculated using a Geographic Information System. Results from these surveys, as well as results from future post-release surveys, will help managers determine the success of these stocking efforts and whether the stocking strategy needs to be modified.
Keywords:	triploid rainbow trout, Oncorhynchus mykiss, stocking, Juneau roadside fishery, pre-release surveys, lake assessment, water quality, bathymetry, hydrography, Crystal Lake, Glacier Lake, Moraine Lake, Twin Lakes.